<?php


namespace Symfony\Component\Cache\Marshaller;

use Symfony\Component\Cache\Exception\CacheException;


class DeflateMarshaller implements MarshallerInterface
{
    private MarshallerInterface $marshaller;

    public function __construct(MarshallerInterface $marshaller)
    {
        if (!\function_exists('gzdeflate')) {
            throw new CacheException('The "zlib" PHP extension is not loaded.');
        }

        $this->marshaller = $marshaller;
    }

    public function marshall(array $values, ?array &$failed): array
    {
        return array_map('gzdeflate', $this->marshaller->marshall($values, $failed));
    }

    public function unmarshall(string $value): mixed
    {
        if (false !== $inflatedValue = @gzinflate($value)) {
            $value = $inflatedValue;
        }

        return $this->marshaller->unmarshall($value);
    }
}